This project is very rigorous about code quality standards. That means that the
source code is checked with Flake8 and
import order is checked with isort.
Before you submit a pull request, please make sure that all tests pass by
executing:

pythonsetup.pycode_quality

Naturally, I also expect the test suite to still pass. Please make sure you test
in at least your local Python2 and Python3 environments: